#632737
Closest named color: Purple Brown (#673A3F). oklch(36.4% 0.088 5.9), rgb(99, 39, 55).
Aa
White text reads best on this color (11.19:1).
About this color
#632737 is a dark, moderately saturated red. In OKLCH its lightness is 36%, its chroma 0.088 and its hue 6°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.049 away. White text reads best on it, at 11.19:1.
| Hue family | Reds |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.088) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 1.87:1 |
| White text | 11.19:1 |
Values
| HEX | #632737 |
| RGB | rgb(99, 39, 55) |
| HSL | hsl(344, 43%, 27%) |
| OKLCH | oklch(36.4% 0.088 5.9) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #632737 | 11.19:1 | AAA | Lc -99.2 | Preferred for body text |
| Black text on #632737 | 1.87:1 | Fails | Lc 8.5 | Not readable |
| #632737 text on white | 11.19:1 | AAA | Lc 95.4 | Preferred for body text |
| #632737 text on black | 1.87:1 | Fails | Lc 0.0 | Not readable |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 900.
-
Step 50
50
#FBF3F4
oklch(97.1% 0.009 8.5)
-
Step 100
100
#F6E5E8
oklch(93.6% 0.019 5.3)
-
Step 200
200
#F0D0D5
oklch(88.6% 0.036 7.2)
-
Step 300
300
#E7AFBA
oklch(80.8% 0.067 5.6)
-
Step 400
400
#D88496
oklch(70.7% 0.105 6.2)
-
Step 500
500
#CC637D
oklch(63.2% 0.135 6.1)
-
Step 600
600
#B74766
oklch(55.6% 0.147 6.1)
-
Step 700
700
#9D3855
oklch(49.2% 0.136 5.9)
-
Step 800
800
#802F45
oklch(42.8% 0.113 6.5)
-
Step 900
900 (this color)
#632737
oklch(36.4% 0.088 5.9)
-
Step 950
950
#3D1A22
oklch(27.1% 0.056 7)
#632737 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #333437 | 0.097 |
| Deuteranopia (no green cones) | #423F36 | 0.089 |
| Tritanopia (no blue cones) | #6B202D | 0.023 |
| Achromatopsia (no color) | #3B3B3B | 0.089 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #632737
#632737
oklch(36.4% 0.088 5.9)
- #004943
#004943
oklch(36.5% 0.064 185.5)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #632737, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.049
- Merlot #730039 ΔE 0.058
- Claret #680018 ΔE 0.061
- Bordeaux #7B002C ΔE 0.062
- Burgundy #610023 ΔE 0.062
- Wine Red #7B0323 ΔE 0.062
- Reddy Brown #6E1005 ΔE 0.063
- Grape Purple #5D1451 ΔE 0.071
Use #632737 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.